217868

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 451584

約数和(自身を除く): 233716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 251, 434, 502, 868, 1004, 1757, 3514, 7028, 7781, 15562, 31124, 54467, 108934, 217868]

約数ペア:

[(1, 217868), (2, 108934), (4, 54467), (7, 31124), (14, 15562), (28, 7781), (31, 7028), (62, 3514), (124, 1757), (217, 1004), (251, 868), (434, 502)]